Preparation of solar selective absorbing CuO coating for medium temperature application |
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Authors: | Huang Qunwu Wang Yiping and Li Jinhua |
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Affiliation: | (1) School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China;(2) Tianjin University Press, Tianjin, 300072, China |
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Abstract: | A new method of preparing CuO solar selective absorbing coating for medium temperature is presented. After pretreatment, brass
was overlaid with CuO by chemical plating. The effects of reactant concentration, reaction temperature and reaction time on
the absorptivity of CuO coating were investigated. The optimized condition of preparing CuO coating was obtained. The CuO
coating was analyzed with X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). In order to prolong
the period of use, the CuO coating was protected by TiO2. The experiment shows that the TiO2/CuO coating is more heat-resistant, acid-resistant, and wear resistant than CuO coating, without losing absorptivity markedly.
The TiO2 coating can reduce emissivity and protect the CuO coating.
Translated from Journal of Tianjin University, 2006, 39(12): 1485–1489 译自: 天津大学学报] |
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Keywords: | CuO medium temperature solar selective absorbing coating preparation |
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